Perform the indicated operation.(2.1x3 - 6.0x2 - 1) - (8.3x3 - 4.5x2 + 5)

A. 10.4x3 - 1.5x2 - 6
B. -6.2x3 - 1.5x2 - 6
C. -6.2x3 - 1.5x2 + 6
D. -6.2x3 - 10.5x2 - 6


Answer: B

Mathematics

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Compute the compound interest.How long will it take for $7700 to grow to $27,200 at an interest rate of 10.9% if the interest is compounded continuously? Round the number of years to the nearest hundredth.

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